7-6009449-A-T

Variant names:

• chr7-6009449-A-T
• rs1289756357
• NM_006303.4:c.86A>T

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_006303.4(AIMP2):​c.86A>T​(p.Asn29Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,610,214 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N29K) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: AIMP2 NM_006303.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.08
• Publications: 0 publications found

Genes affected

AIMP2 (HGNC:20609): (aminoacyl tRNA synthetase complex interacting multifunctional protein 2) The protein encoded by this gene is part of the aminoacyl-tRNA synthetase complex, which contains nine different aminoacyl-tRNA synthetases and three non-enzymatic factors. The encoded protein is one of the non-enzymatic factors and is required for assembly and stability of the complex. [provided by RefSeq, May 2016]

AIMP2 Gene-Disease associations (from GenCC):

• leukodystrophy, hypomyelinating, 17

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Illumina, Labcorp Genetics (formerly Invitae), ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.808

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006303.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AIMP2	NM_006303.4	MANE Select	c.86A>T	p.Asn29Ile	missense	Exon 1 of 4	NP_006294.2
	AIMP2	NM_001326607.2		c.86A>T	p.Asn29Ile	missense	Exon 1 of 3	NP_001313536.1	Q13155-2
	AIMP2	NM_001326609.2		c.-235A>T		5_prime_UTR	Exon 1 of 5	NP_001313538.1	A8MU58

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AIMP2	ENST00000223029.8	TSL:1 MANE Select	c.86A>T	p.Asn29Ile	missense	Exon 1 of 4	ENSP00000223029.3	Q13155-1
	AIMP2	ENST00000395236.2	TSL:2	c.86A>T	p.Asn29Ile	missense	Exon 1 of 3	ENSP00000378658.2	Q13155-2
	AIMP2	ENST00000400479.6	TSL:5	c.-251+71A>T		intron	N/A	ENSP00000383327.2	A8MU58

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 151930 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000242

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000404 AC: 1 AN: 247290 AF XY: 0.00000743

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.0000464

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.86e-7 AC: 1 AN: 1458284 Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1 AN XY: 725432

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33382

American (AMR) AF: 0.00 AC: 0 AN: 44558

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26090

East Asian (EAS) AF: 0.00 AC: 0 AN: 39632

South Asian (SAS) AF: 0.00 AC: 0 AN: 86098

European-Finnish (FIN) AF: 0.0000190 AC: 1 AN: 52538

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4152

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111662

Other (OTH) AF: 0.00 AC: 0 AN: 60172

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 151930 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74212

African (AFR) AF: 0.0000242 AC: 1 AN: 41370

American (AMR) AF: 0.00 AC: 0 AN: 15266

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5138

South Asian (SAS) AF: 0.00 AC: 0 AN: 4828

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10596

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67948

Other (OTH) AF: 0.00 AC: 0 AN: 2084

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.33
BayesDel_addAF	Benign	0.0025	T
BayesDel_noAF	Benign	-0.23
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.46	T
Eigen	Uncertain	0.34
Eigen_PC	Uncertain	0.27
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Benign	0.81	T
M_CAP	Benign	0.061	D
MetaRNN	Pathogenic	0.81	D
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.1	M
PhyloP100		2.1
PrimateAI	Uncertain	0.60	T
PROVEAN	Uncertain	-4.1	D
REVEL	Benign	0.22
Sift	Benign	0.058	T
Sift4G	Benign	0.16	T
Polyphen		0.99	D
Vest4		0.84
MutPred		0.67		Loss of disorder (P = 0.0312)
MVP		0.40
MPC		0.17
ClinPred		0.99	D
GERP RS		2.7
PromoterAI		0.037	Neutral
Varity_R		0.65
gMVP		0.62
Mutation Taster		=78/22	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs1289756357; hg19: chr7-6049080;